Bug 1073003 - Fix -Wattribute and -Wmultichar warnings in select directories by disabling them. r=ehsan,ted

--HG--
extra : rebase_source : daf7c38dee86adf07c6d87632a18af60e0eb4f0d

dom/media/omx/mediaresourcemanager/moz.build

@@ -24,6 +24,13 @@ SOURCES += [
 
 include('/ipc/chromium/chromium-config.mozbuild')
 
+# Suppress some GCC/clang warnings being treated as errors:
+#  - about multi-character constants which are used in codec-related code
+if CONFIG['GNU_CC'] or CONFIG['CLANG_CL']:
+  CXXFLAGS += [
+    '-Wno-error=multichar'
+  ]
+
 CXXFLAGS += [
     '-I%s/%s' % (CONFIG['ANDROID_SOURCE'], d) for d in [
         'frameworks/base/include',

dom/media/omx/moz.build

@@ -79,6 +79,16 @@ if CONFIG['ANDROID_VERSION'] >= '18':
 
 include('/ipc/chromium/chromium-config.mozbuild')
 
+# Suppress some GCC/clang warnings being treated as errors:
+#  - about attributes on forward declarations for types that are already
+#    defined, which complains about an important MOZ_EXPORT for android::AString
+#  - about multi-character constants which are used in codec-related code
+if CONFIG['GNU_CC'] or CONFIG['CLANG_CL']:
+  CXXFLAGS += [
+    '-Wno-error=attributes',
+    '-Wno-error=multichar'
+  ]
+
 FINAL_LIBRARY = 'xul'
 LOCAL_INCLUDES += [
     '/dom/base',

dom/media/webrtc/moz.build

@@ -60,6 +60,15 @@ EXPORTS.mozilla += [
 
 include('/ipc/chromium/chromium-config.mozbuild')
 
+# Suppress some GCC/clang warnings being treated as errors:
+#  - about attributes on forward declarations for types that are already
+#    defined, which complains about important MOZ_EXPORT attributes for
+#    android API types
+if CONFIG['GNU_CC'] or CONFIG['CLANG_CL']:
+  CXXFLAGS += [
+    '-Wno-error=attributes'
+  ]
+
 FINAL_LIBRARY = 'xul'
 if CONFIG['OS_ARCH'] == 'WINNT':
     DEFINES['NOMINMAX'] = True